How to grant remote access permissions to mysql server for user?
授权先：
GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.%'
IDENTIFIED BY 'some_characters'
WITH GRANT OPTION;
FLUSH PRIVILEGES;
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然后改下：
/etc/mysql/my.cnf 中的bind-address，注掉就是不限制ip了。
